Abstract
The activity of metalaxyl, fosetyl‐Al, dimethomorph, and cymoxanil against Phytophthora crown rot of peach trees was examined. Application of fosetyl‐Al or metalaxyl by painting the trunk (150 g/l) of 3‐year‐old PR204 trees was inhibitory to growth of the fungus but neither dimethomorph nor cymoxanil were effective. Application of metalaxyl as a soil drench suppressed canker development when the treated trees were subsequently inoculated with Phytophthora cactorum . Fosetyl‐Al significantly reduced the growth of fungus compared with cymoxanil, dimethomorph and control but it was not as effective as metalaxyl. Again, dimethomorph and cymoxanil did not influence canker development. Both metalaxyl and fosetyl‐Al were active for at least 21 days after applications. Strips of trunk bark were removed from trees, that had been drenched with the tested chemicals 20 days before, and inoculated on the cambium side with P. cactorum . Metalaxyl was the most effective fungicide and fosetyl‐Al significantly reduced the development of fungus compared with dimethomorph, cymoxanil and the untreated strips. Colonization of strips treated with dimethomorph was significantly less than untreated strips. In contrast, cymoxanil did not inhibit the growth of fungus. Application of metalaxyl or fosetyl‐Al as trunk paint or a soil drench appear to be effective procedures for preventing Phytophthora rot of peach trees.
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Claims 16
Claim · model-written summary
Trunk-painted fosetyl‐Al inhibited fungal growth.
- Material
- PR204e0
- Treatment
- fosetyl‐Ale0
- Outcome
- growth of the funguse0
- Direction
- inhibitorye0
- Value
- 150 g/le0
Not reportedTaxonComparator
Verbatim
e0“Application of fosetyl‐Al or metalaxyl by painting the trunk (150 g/l) of 3‐year‐old PR204 trees was inhibitory to growth of the fungus”
t0“Peach Tree”
Claim · model-written summary
Trunk-painted metalaxyl inhibited fungal growth.
Not reportedTaxonComparator
Verbatim
e0“Application of fosetyl‐Al or metalaxyl by painting the trunk (150 g/l) of 3‐year‐old PR204 trees was inhibitory to growth of the fungus”
t0“Peach Tree”
Claim · model-written summary
Dimethomorph trunk painting was ineffective.
Not reportedTaxonComparator
Verbatim
e0“neither dimethomorph nor cymoxanil were effective”
t0“Peach Tree”
Claim · model-written summary
Cymoxanil trunk painting was ineffective.
Not reportedTaxonComparator
Verbatim
e0“neither dimethomorph nor cymoxanil were effective”
t0“Peach Tree”
Claim · model-written summary
Metalaxyl soil drench suppressed canker development after inoculation.
- Taxon
- treese0
- Treatment
- metalaxyl as a soil drenche0
- Interactor
- Phytophthora cactorum
Phytophthora cactorume0pathogen - Outcome
- canker developmente0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of metalaxyl as a soil drench suppressed canker development when the treated trees were subsequently inoculated with Phytophthora cactorum”
Claim · model-written summary
Fosetyl‐Al significantly reduced fungal growth versus cymoxanil, dimethomorph and control.
- Treatment
- Fosetyl‐Ale0
- Outcome
- growth of funguse0
- Direction
- reducede0
- Comparator
- cymoxanil, dimethomorph and controle0
Not reportedTaxon
Verbatim
e0“Fosetyl‐Al significantly reduced the growth of fungus compared with cymoxanil, dimethomorph and control”
t0“Peach Tree”
Claim · model-written summary
Fosetyl‐Al was less effective than metalaxyl.
Not reportedTaxonTreatment
Verbatim
e0“it was not as effective as metalaxyl”
t0“Peach Tree”
Claim · model-written summary
Dimethomorph did not influence canker development.
Not reportedTaxonComparator
Verbatim
e0“dimethomorph and cymoxanil did not influence canker development”
t0“Peach Tree”
Claim · model-written summary
Cymoxanil did not influence canker development.
Not reportedTaxonComparator
Verbatim
e0“dimethomorph and cymoxanil did not influence canker development”
t0“Peach Tree”
Claim · model-written summary
Metalaxyl remained active at least 21 days.
Not reportedTaxon
Verbatim
e0“Both metalaxyl and fosetyl‐Al were active for at least 21 days after applications”
t0“Peach Tree”
Claim · model-written summary
Fosetyl‐Al remained active at least 21 days.
Not reportedTaxon
Verbatim
e0“Both metalaxyl and fosetyl‐Al were active for at least 21 days after applications”
t0“Peach Tree”
Claim · model-written summary
Metalaxyl was the most effective fungicide in bark strips.
Not reportedTaxonComparator
Verbatim
e0“Metalaxyl was the most effective fungicide”
t0“Peach Tree”
Claim · model-written summary
Fosetyl‐Al significantly reduced fungal development versus other agents and untreated strips.
- Treatment
- fosetyl‐Ale0
- Outcome
- development of funguse0
- Direction
- reducede0
- Comparator
- dimethomorph, cymoxanil and the untreated stripse0
Not reportedTaxon
Verbatim
e0“fosetyl‐Al significantly reduced the development of fungus compared with dimethomorph, cymoxanil and the untreated strips”
t0“Peach Tree”
Claim · model-written summary
Dimethomorph significantly reduced strip colonization versus untreated strips.
Not reportedTaxon
Verbatim
e0“Colonization of strips treated with dimethomorph was significantly less than untreated strips”
t0“Peach Tree”
Claim · model-written summary
Cymoxanil did not inhibit fungal growth on bark strips.
Not reportedTaxonComparator
Verbatim
e0“cymoxanil did not inhibit the growth of fungus”
t0“Peach Tree”
Claim · model-written summary
The authors recommend metalaxyl trunk painting to prevent peach Phytophthora rot.
- Taxon
- peach trees
Prunus persicae0 - Treatment
- metalaxyle0
- Interactor
- Phytophthora
Phytophthorae0pathogen - Outcome
- preventing Phytophthora rote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of metalaxyl or fosetyl‐Al as trunk paint or a soil drench appear to be effective procedures for preventing Phytophthora rot of peach trees”